Windows Netbackup performance issue - Veritas Net Backup

This is a discussion on Windows Netbackup performance issue - Veritas Net Backup ; We are currently running Netbackup 5.1; and doing backups from a windows media
server which is connected to the SAN. We had some problems last week and
ran a couple backups over the network and increased our performance 2x, 3x,
...

Windows Netbackup performance issue

We are currently running Netbackup 5.1; and doing backups from a windows media
server which is connected to the SAN. We had some problems last week and
ran a couple backups over the network and increased our performance 2x, 3x,
KB per second, which bothered us because we are not getting better performance
thru the SAN. The SAN environment looks good and we are not having any problems.
We have adjusted the queue depth from 32 to 8 on the hba cards, and have
gotten a slight increase in peformance (we think we might have some shoe
shining on the tape drives). Any ideas will be appreciated